RUBBER COMPOSITION AND PNEUMATIC TIRE
    25.
    发明公开
    RUBBER COMPOSITION AND PNEUMATIC TIRE 审中-公开
    KAUTSCHUKZUSAMMENSETZUNG UND LUFTREIFEN

    公开(公告)号:EP3085734A4

    公开(公告)日:2017-08-30

    申请号:EP15792603

    申请日:2015-04-22

    Inventor: MIYAZAKI TATSUYA

    Abstract: Provided are a rubber composition that can achieve a balanced improvement in wet grip performance, abrasion resistance, and abrasion appearance after abrasion, and a pneumatic tire including a tread formed from the rubber composition. Included is a rubber composition containing: a rubber component including a diene rubber; an inorganic filler having a BET of 10-120 m 2 /g, formed of a compound of formula below, magnesium sulfate, or silicon carbide; and a fine particle carbon black having a BET of 151 m 2 /g or more and/or a low-temperature plasticizer having a freezing point of -10°C or lower, the rubber composition containing, per 100 parts by mass of the rubber component, 1-70 parts by mass of the inorganic filler, 5-140 parts by mass of the fine particle carbon black, and 1-30 parts by mass of the low-temperature plasticizer, the combined amount of the filler and the carbon black being 50-190 parts by mass, mM ·xSiO y ·zH 2 O wherein M represents at least one metal selected from the group consisting of Al, Mg, Ti, Ca, and Zr, or an oxide or hydroxide of the metal; m represents an integer of 1-5; x represents an integer of 0 to 10; y represents an integer of 2-5; and z represents an integer of 0-10.

    Abstract translation: 本发明提供一种橡胶组合物,该橡胶组合物能够实现湿式抓地性能,耐磨耗性和磨损后的磨损外观的均衡提高,以及具有由该橡胶组合物形成的胎面的充气轮胎。 包括橡胶组合物,其包含:包含二烯橡胶的橡胶组分; BET为10-120m 2 / g的无机填料,由下式化合物,硫酸镁或碳化硅形成; 和BET为151m 2 / g或更高的细颗粒炭黑和/或具有-10℃或更低的凝固点的低温增塑剂,所述橡胶组合物每100质量份所述橡胶 无机填充剂1〜70质量份,微粒炭黑5〜140质量份,低温增塑剂1〜30质量份,填充剂与炭黑的合计量 其中M表示选自Al,Mg,Ti,Ca和Zr中的至少一种金属,或者该金属的氧化物或氢氧化物; m表示50-190质量份,m·xSiO y·zH 2 O, m表示1-5的整数; x表示0至10的整数; y代表2-5的整数; z表示0-10的整数。

    PROCESS FOR CONTROLLING THE POROSITY OF CARBON BLACKS
    28.
    发明公开
    PROCESS FOR CONTROLLING THE POROSITY OF CARBON BLACKS 审中-公开
    控制碳黑孔隙度的方法

    公开(公告)号:EP3186313A1

    公开(公告)日:2017-07-05

    申请号:EP15759714.7

    申请日:2015-08-28

    Abstract: The present invention relates to a furnace black having a STSA surface area of at 130 m
    2 /g to 350 m
    2 /g wherein - the ratio of BET surface area to STSA surface area is less than 1.1 if the STSA surface area is in the range of 130 m
    2 /g to 150 m
    2 /g, - the ratio of BET surface area to STSA surface area is less than 1.2 if the STSA surface area is greater than 150 m
    2 /g to 180 m
    2 /g, -the ratio of BET surface area to STSA surface area is less than 1.3 if the STSA surface area is greater than 180 m
    2 /g; and the STSA surface area and the BET surface area are measured according to ASTM D 6556 and to a furnace process wherein the stoichiometric ratio of combustible material to O
    2 when forming a combustion gas stream is adjusted to obtain a k factor of less than 1.2 and the inert gas concentration in the reactor is increased while limiting the CO
    2 amount fed to the reactor. Also provided is an apparatus for conducting the process according to the present invention.

    Abstract translation: 本发明涉及具有130m 2 / g-350m 2 / g的STSA表面积的炉法炭黑,其中 - 如果STSA表面积在以下范围内,则BET表面积与STSA表面积的比率小于1.1: 130平方米/克至150平方米/克, - 如果STSA表面积大于150平方米/克至180平方米/克,BET表面积与STSA表面积的比率小于1.2, - BET比表面积 如果STSA表面积大于180m2 / g,则STSA表面积小于1.3; 并且STSA表面积和BET表面积根据ASTM D 6556和炉法测量,其中在形成燃烧气体物流时可燃物质与O 2的化学计量比被调节以获得小于1.2的K因子,惰性物质 在限制供给反应器的CO 2量的同时增加反应器中的气体浓度。 还提供了用于实施根据本发明的方法的设备。

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